diff --git a/openmc_plotter/__init__.py b/openmc_plotter/__init__.py
index e69de29..cd57cb1 100644
--- a/openmc_plotter/__init__.py
+++ b/openmc_plotter/__init__.py
@@ -0,0 +1,2 @@
+
+__version__ = '0.2.0'
diff --git a/openmc_plotter/__main__.py b/openmc_plotter/__main__.py
index 1230416..ee8caec 100644
--- a/openmc_plotter/__main__.py
+++ b/openmc_plotter/__main__.py
@@ -10,10 +10,14 @@
 from PySide2 import QtCore, QtGui
 from PySide2.QtWidgets import QApplication, QSplashScreen
 
+from . import __version__
 from .main_window import MainWindow, _openmcReload
 
 def main():
     ap = ArgumentParser(description='OpenMC Plotter GUI')
+    version_str = f'OpenMC Plotter Version: {__version__}'
+    ap.add_argument('-v', '--version', action='version', version=version_str,
+                    help='Display version info.')
     ap.add_argument('-d', '--model-directory', default=os.curdir,
                     help='Location of model dir (default is current dir)')
     ap.add_argument('-e','--ignore-settings', action='store_false',
diff --git a/setup.py b/setup.py
index e1effdf..788a1b5 100644
--- a/setup.py
+++ b/setup.py
@@ -1,8 +1,13 @@
 from setuptools import setup
 
+# Get version information from __init__.py. This is ugly, but more reliable than
+# using an import.
+with open('openmc_plotter/__init__.py', 'r') as f:
+    version = f.readlines()[-1].split()[-1].strip("'")
+
 kwargs = {
     'name': 'openmc-plotter',
-    'version': '0.2.0',
+    'version': version,
     'packages': ['openmc_plotter'],
     'package_data': {'openmc_plotter' : ['assets/*.png']},
     'entry_points': {